[Osi] OsiCpx error when using CPXsolninfo before cplex 11.0

[Stefan Vigerske]

Hi,

Was not known to me.
I think OsiCpx tries to be backward compatible w.r.t. CPLEX, so I 
changed it to not use CPXsolninfo for MIPs with CPLEX < 11.0.
I did not test with an old CPLEX, though.

Will merge it to stable, too.

Stefan

On 11/05/2012 05:14 PM, Jan-Willem Goossens wrote:
> Hi,
> In changeset 1683 OsiCpxSolverInterface introduced the use of CPXsolninfo, mostly to check whether a solution exists.
> Before CPLEX 11, however, the CPXsolninfo() is NOT available for mip-opt.
>
> For example, when Cplex 10.2 is used to solve a mip with OsiCpxSolverInterface, then a call to getColSolution() results in
>
> CPLEX Error 1017: Not available for mixed-integer programs.
>
> I understand this only affects old CPLEX versions, so fixing this is not high priority for most folks.
> Is this a known issue?
>
> Regards,
>
> Jan-Willem
>
>
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